370 GLOSSARY 
Fissured. Torn lengthwise, as applied to bark, or to pith, 
for which the more general term spongy is used. 
Fistulous. Hollow, with excavated pith (honeysuckle stem). 
Flaking. Shredding, but with short fragments. 
Fleshy, or succulent. Not hard and woody (stem); not dry 
(fruit, bud-scales). 
Floriferous, florigerous. Flower-bearing, or producing flowers. 
Fluted. Corrugated or ridged lengthwise. 
Foliage. Collectively, the leaves of a plant: the green ex- 
panded organs in which carbon from the air is combined 
into organic compounds. 
Foliage-sprays. Twigs that finally fall away carrying the 
small leaves with them,—sometimes at end of the first 
season (tamarisk), sometimes after several years (arbor 
vitae). 
Foliar-gaps or lacunae. Breaks between the vascular bundles 
of the stem which run continuously from one internode 
into another. Through these breaks certain bundles of 
the stem pass out into the leaves to constitute the net- 
work of veins through which these organs are supplied 
with water absorbed by the root and conducted to them 
through the stem. An admirable illustrated paper on the 
anatomy of the node as an aid in the classification of 
angiosperms is published by Sinnott in The American 
Journal of Botany for July 1914. 
Follicle. A small dry fruit opening down one po (nine- 
bark). 
Fragmented. Not continuous, as applied to bundle- ieds. 
Fringed. Ciliate with glands or scales rather than fine hairs, 
as here used. 
Fusiform. Spindle-shaped (buds of beach). 
Gametes. Sex-cells: egg and sperm. 
Gamophyllous. Of united leaves;—gamopetalous when these 
are petals, gamosepalous when they are sepals. 
